MESON Chess Problem Database

Problem Display
PID: 243688 (8/8/7Q/4R2p/5Nb1/5k1P/8/4K2R w K - 0 1)

Hermanson, Halvar

Tidskrift for Schack, 1981

8/8/7Q/4R2p/5Nb1/5k1P/8/4K2R

#2

6 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qb6?
      • threat
        • 2.Qf2#
        • 2.Qe3#
      • 1...Kg3
        • 2.Qf2#
      • 1...Kxf4
        • 2.Qe3#
      • 1...Bxh3!
  • Keys
    • 1.Qg5!
      • 1...Kg3
        • 2.Re3#
      • 1...Bxh3
        • 2.Rxh3#
      • 1...Bf5
        • 2.Rf1#
        • 2.0-0#
      • 1...Be6
        • 2.Rf1#
        • 2.0-0#
      • 1...Bd7
        • 2.Rf1#
        • 2.0-0#
      • 1...Bc8
        • 2.Rf1#
        • 2.0-0#
      • 1...h4
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAB1(F)
        • K(a);P-FLIGHT,XS(D)::QAB1(F)
      • Refutation
        • B(b);XP(C)
  • Actual
    • Q(F);
    • Vars
      • K(a);P-FLIGHT,P_SPINB(b)::R(E)
      • B(b);OGATE,XP(C)::R(B),XB(b)
      • P(c);N_GUARD::QAB1(F),XB(b)
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